Auto merge of #119970 - GuillaumeGomez:rollup-p53c19o, r=GuillaumeGomez

Rollup of 3 pull requests

Successful merges:

 - #119561 (rustdoc: rename `issue-\d+.rs` tests to have meaningful names (part 5))
 - #119742 (ARMv6K HorizonOS - Fix backlog for UnixListener)
 - #119960 (Inline 2 functions that appear in dep-graph profiles.)

r? `@ghost`
`@rustbot` modify labels: rollup

28 files changed, 126 insertions, 58 deletions

diff --git a/compiler/rustc_index_macros/src/newtype.rs b/compiler/rustc_index_macros/src/newtype.rs
index df1318c835e..ede8416125d 100644
--- a/compiler/rustc_index_macros/src/newtype.rs
+++ b/compiler/rustc_index_macros/src/newtype.rs
@@ -263,6 +263,7 @@ impl Parse for Newtype {
             impl std::ops::Add<usize> for #name {
                 type Output = Self;
 
+                #[inline]
                 fn add(self, other: usize) -> Self {
                     Self::from_usize(self.index() + other)
                 }
diff --git a/compiler/rustc_query_system/src/dep_graph/serialized.rs b/compiler/rustc_query_system/src/dep_graph/serialized.rs
index 504763f6cdb..f6f6aa07cb3 100644
--- a/compiler/rustc_query_system/src/dep_graph/serialized.rs
+++ b/compiler/rustc_query_system/src/dep_graph/serialized.rs
@@ -169,6 +169,7 @@ impl EdgeHeader {
     }
 }
 
+#[inline]
 fn mask(bits: usize) -> usize {
     usize::MAX >> ((std::mem::size_of::<usize>() * 8) - bits)
 }
diff --git a/library/std/src/os/unix/net/listener.rs b/library/std/src/os/unix/net/listener.rs
index f6835472e2c..8bf1e2dca6f 100644
--- a/library/std/src/os/unix/net/listener.rs
+++ b/library/std/src/os/unix/net/listener.rs
@@ -73,7 +73,12 @@ impl UnixListener {
         unsafe {
             let inner = Socket::new_raw(libc::AF_UNIX, libc::SOCK_STREAM)?;
             let (addr, len) = sockaddr_un(path.as_ref())?;
-            #[cfg(any(target_os = "windows", target_os = "redox", target_os = "espidf"))]
+            #[cfg(any(
+                target_os = "windows",
+                target_os = "redox",
+                target_os = "espidf",
+                target_os = "horizon"
+            ))]
             const backlog: libc::c_int = 128;
             #[cfg(any(target_os = "linux", target_os = "freebsd", target_os = "openbsd"))]
             const backlog: libc::c_int = -1;
@@ -83,7 +88,8 @@ impl UnixListener {
                 target_os = "linux",
                 target_os = "freebsd",
                 target_os = "openbsd",
-                target_os = "espidf"
+                target_os = "espidf",
+                target_os = "horizon"
             )))]
             const backlog: libc::c_int = libc::SOMAXCONN;
 
diff --git a/tests/rustdoc/issue-52873.rs b/tests/rustdoc-ui/ice-blanket-impl-52873.rs
index 8000ce73bd4..2520957bd00 100644
--- a/tests/rustdoc/issue-52873.rs
+++ b/tests/rustdoc-ui/ice-blanket-impl-52873.rs
@@ -1,3 +1,7 @@
+// check-pass
+// https://github.com/rust-lang/rust/issues/52873
+#![crate_name="foo"]
+
 // Regression test for #52873. We used to ICE due to unexpected
 // overflows when checking for "blanket impl inclusion".
 
diff --git a/tests/rustdoc/issue-55001.rs b/tests/rustdoc-ui/ice-blanket-impl-selection-55001.rs
index f6c7f9a3d08..babcb3dda14 100644
--- a/tests/rustdoc/issue-55001.rs
+++ b/tests/rustdoc-ui/ice-blanket-impl-selection-55001.rs
@@ -1,3 +1,7 @@
+// check-pass
+// https://github.com/rust-lang/rust/issues/55001
+#![crate_name="foo"]
+
 // Regression test for issue #55001. Previously, we would incorrectly
 // cache certain trait selection results when checking for blanket impls,
 // resulting in an ICE when we tried to confirm the cached ParamCandidate
diff --git a/tests/rustdoc/issue-50159.rs b/tests/rustdoc/auto-trait-bounds-by-associated-type-50159.rs
index 13bedd5dbb0..0663ed5fc81 100644
--- a/tests/rustdoc/issue-50159.rs
+++ b/tests/rustdoc/auto-trait-bounds-by-associated-type-50159.rs
@@ -1,3 +1,6 @@
+// https://github.com/rust-lang/rust/issues/50159
+#![crate_name="foo"]
+
 pub trait Signal {
     type Item;
 }
@@ -10,7 +13,7 @@ impl<B, C> Signal2 for B where B: Signal<Item = C> {
     type Item2 = C;
 }
 
-// @has issue_50159/struct.Switch.html
+// @has foo/struct.Switch.html
 // @has - '//h3[@class="code-header"]' 'impl<B> Send for Switch<B>where <B as Signal>::Item: Send'
 // @has - '//h3[@class="code-header"]' 'impl<B> Sync for Switch<B>where <B as Signal>::Item: Sync'
 // @count - '//*[@id="implementations-list"]//*[@class="impl"]' 0
diff --git a/tests/rustdoc/issue-54705.rs b/tests/rustdoc/auto-trait-bounds-inference-variables-54705.rs
index a886eb0de24..00be0042fb0 100644
--- a/tests/rustdoc/issue-54705.rs
+++ b/tests/rustdoc/auto-trait-bounds-inference-variables-54705.rs
@@ -1,6 +1,9 @@
+// https://github.com/rust-lang/rust/issues/54705
+#![crate_name="foo"]
+
 pub trait ScopeHandle<'scope> {}
 
-// @has issue_54705/struct.ScopeFutureContents.html
+// @has foo/struct.ScopeFutureContents.html
 // @has - '//*[@id="synthetic-implementations-list"]//*[@class="impl"]//h3[@class="code-header"]' \
 // "impl<'scope, S> Send for ScopeFutureContents<'scope, S>where S: Sync"
 //
diff --git a/tests/rustdoc/issue-51236.rs b/tests/rustdoc/auto-trait-bounds-where-51236.rs
index 04664805a88..30c81e79601 100644
--- a/tests/rustdoc/issue-51236.rs
+++ b/tests/rustdoc/auto-trait-bounds-where-51236.rs
@@ -1,3 +1,6 @@
+// https://github.com/rust-lang/rust/issues/51236
+#![crate_name="foo"]
+
 use std::marker::PhantomData;
 
 pub mod traits {
@@ -6,7 +9,7 @@ pub mod traits {
     }
 }
 
-// @has issue_51236/struct.Owned.html
+// @has foo/struct.Owned.html
 // @has - '//*[@id="synthetic-implementations-list"]//*[@class="impl"]//h3[@class="code-header"]' \
 // "impl<T> Send for Owned<T>where <T as Owned<'static>>::Reader: Send"
 pub struct Owned<T> where T: for<'a> ::traits::Owned<'a> {
diff --git a/tests/rustdoc/issue-55321.rs b/tests/rustdoc/auto-trait-negative-impl-55321.rs
index d3c2070d915..e9be1ff854e 100644
--- a/tests/rustdoc/issue-55321.rs
+++ b/tests/rustdoc/auto-trait-negative-impl-55321.rs
@@ -1,6 +1,9 @@
+// https://github.com/rust-lang/rust/issues/55321
+#![crate_name="foo"]
+
 #![feature(negative_impls)]
 
-// @has issue_55321/struct.A.html
+// @has foo/struct.A.html
 // @has - '//*[@id="trait-implementations-list"]//*[@class="impl"]//h3[@class="code-header"]' \
 // "impl !Send for A"
 // @has - '//*[@id="trait-implementations-list"]//*[@class="impl"]//h3[@class="code-header"]' \
@@ -10,7 +13,7 @@ pub struct A();
 impl !Send for A {}
 impl !Sync for A {}
 
-// @has issue_55321/struct.B.html
+// @has foo/struct.B.html
 // @has - '//*[@id="synthetic-implementations-list"]//*[@class="impl"]//h3[@class="code-header"]' \
 // "impl<T> !Send for B<T>"
 // @has - '//*[@id="synthetic-implementations-list"]//*[@class="impl"]//h3[@class="code-header"]' \
diff --git a/tests/rustdoc/blank-line-in-doc-block-47197.rs b/tests/rustdoc/blank-line-in-doc-block-47197.rs
new file mode 100644
index 00000000000..79492b4fa76
--- /dev/null
+++ b/tests/rustdoc/blank-line-in-doc-block-47197.rs
@@ -0,0 +1,11 @@
+// https://github.com/rust-lang/rust/issues/47197
+#![crate_name="foo"]
+
+// @has foo/fn.whose_woods_these_are_i_think_i_know.html
+
+/**
+* snow
+
+* ice
+*/
+pub fn whose_woods_these_are_i_think_i_know() {}
diff --git a/tests/rustdoc/issue-54478-demo-allocator.rs b/tests/rustdoc/demo-allocator-54478.rs
index 4811f363bc9..39acee36d88 100644
--- a/tests/rustdoc/issue-54478-demo-allocator.rs
+++ b/tests/rustdoc/demo-allocator-54478.rs
@@ -1,3 +1,6 @@
+// https://github.com/rust-lang/rust/issues/54478
+#![crate_name="foo"]
+
 // Issue #54478: regression test showing that we can demonstrate
 // `#[global_allocator]` in code blocks built by `rustdoc`.
 //
diff --git a/tests/rustdoc/issue-35169-2.rs b/tests/rustdoc/deref-mut-35169-2.rs
index f08466baf8b..c82323ddc6a 100644
--- a/tests/rustdoc/issue-35169-2.rs
+++ b/tests/rustdoc/deref-mut-35169-2.rs
@@ -1,3 +1,6 @@
+// https://github.com/rust-lang/rust/issues/35169
+#![crate_name="foo"]
+
 use std::ops::Deref;
 use std::ops::DerefMut;
 
@@ -23,7 +26,7 @@ impl DerefMut for Bar {
     fn deref_mut(&mut self) -> &mut Foo { loop {} }
 }
 
-// @has issue_35169_2/struct.Bar.html
+// @has foo/struct.Bar.html
 // @has - '//*[@id="method.by_ref"]//h4[@class="code-header"]' 'fn by_ref(&self)'
 // @has - '//*[@id="method.by_ref"]' 'fn by_ref(&self)'
 // @has - '//*[@id="method.by_explicit_ref"]//h4[@class="code-header"]' 'fn by_explicit_ref(self: &Foo)'
diff --git a/tests/rustdoc/issue-35169.rs b/tests/rustdoc/deref-mut-35169.rs
index 70a2265c806..44afaf2e903 100644
--- a/tests/rustdoc/issue-35169.rs
+++ b/tests/rustdoc/deref-mut-35169.rs
@@ -1,3 +1,6 @@
+// https://github.com/rust-lang/rust/issues/35169
+#![crate_name="foo"]
+
 use std::ops::Deref;
 
 pub struct Foo;
@@ -18,7 +21,7 @@ impl Deref for Bar {
     fn deref(&self) -> &Foo { loop {} }
 }
 
-// @has issue_35169/struct.Bar.html
+// @has foo/struct.Bar.html
 // @has - '//*[@id="method.by_ref"]//h4[@class="code-header"]' 'fn by_ref(&self)'
 // @has - '//*[@id="method.by_ref"]' 'fn by_ref(&self)'
 // @has - '//*[@id="method.by_explicit_ref"]//h4[@class="code-header"]' 'fn by_explicit_ref(self: &Foo)'
diff --git a/tests/rustdoc/issue-42760.rs b/tests/rustdoc/doc-attr-comment-mix-42760.rs
index a5394c7d92a..16c1705eb00 100644
--- a/tests/rustdoc/issue-42760.rs
+++ b/tests/rustdoc/doc-attr-comment-mix-42760.rs
@@ -1,6 +1,9 @@
+// https://github.com/rust-lang/rust/issues/42760
+#![crate_name="foo"]
+
 #![allow(rustdoc::invalid_rust_codeblocks)]
 
-// @has issue_42760/struct.NonGen.html
+// @has foo/struct.NonGen.html
 // @has - '//h2' 'Example'
 
 /// Item docs.
diff --git a/tests/rustdoc/issue-41783.codeblock.html b/tests/rustdoc/doctest/doctest-escape-boring-41783.codeblock.html
index 3bca4536cd5..3bca4536cd5 100644
--- a/tests/rustdoc/issue-41783.codeblock.html
+++ b/tests/rustdoc/doctest/doctest-escape-boring-41783.codeblock.html
diff --git a/tests/rustdoc/issue-41783.rs b/tests/rustdoc/doctest/doctest-escape-boring-41783.rs
index 7578d49daa5..7782e148fd9 100644
--- a/tests/rustdoc/issue-41783.rs
+++ b/tests/rustdoc/doctest/doctest-escape-boring-41783.rs
@@ -1,4 +1,7 @@
-// @has issue_41783/struct.Foo.html
+// https://github.com/rust-lang/rust/issues/41783
+#![crate_name="foo"]
+
+// @has foo/struct.Foo.html
 // @!hasraw - 'space'
 // @!hasraw - 'comment'
 // @hasraw - '<span class="attr">#[outer]'
diff --git a/tests/rustdoc/enum-variant-reexport-35488.rs b/tests/rustdoc/enum-variant-reexport-35488.rs
new file mode 100644
index 00000000000..ed955dcd770
--- /dev/null
+++ b/tests/rustdoc/enum-variant-reexport-35488.rs
@@ -0,0 +1,16 @@
+// https://github.com/rust-lang/rust/issues/35488
+#![crate_name="foo"]
+
+mod foo {
+    pub enum Foo {
+        Bar,
+    }
+    pub use self::Foo::*;
+}
+
+// @has 'foo/index.html' '//code' 'pub use self::Foo::*;'
+// @has 'foo/enum.Foo.html'
+pub use self::foo::*;
+
+// @has 'foo/index.html' '//code' 'pub use std::option::Option::None;'
+pub use std::option::Option::None;
diff --git a/tests/rustdoc/issue-53689.rs b/tests/rustdoc/impl-blanket-53689.rs
index 832140e061b..7c2edd01a60 100644
--- a/tests/rustdoc/issue-53689.rs
+++ b/tests/rustdoc/impl-blanket-53689.rs
@@ -1,3 +1,4 @@
+// https://github.com/rust-lang/rust/issues/53689
 // aux-build:issue-53689.rs
 
 #![crate_name = "foo"]
diff --git a/tests/rustdoc/issue-43869.rs b/tests/rustdoc/impl-trait-43869.rs
index 767d09d8558..9c4ed841f79 100644
--- a/tests/rustdoc/issue-43869.rs
+++ b/tests/rustdoc/impl-trait-43869.rs
@@ -1,3 +1,6 @@
+// https://github.com/rust-lang/rust/issues/43869
+#![crate_name="foo"]
+
 pub fn g() -> impl Iterator<Item=u8> {
     Some(1u8).into_iter()
 }
@@ -58,15 +61,15 @@ pub fn test_44731_4() -> Box<Iterator<Item=impl Clone>> {
     Box::new(g())
 }
 
-// @has issue_43869/fn.g.html
-// @has issue_43869/fn.h.html
-// @has issue_43869/fn.i.html
-// @has issue_43869/fn.j.html
-// @has issue_43869/fn.k.html
-// @has issue_43869/fn.l.html
-// @has issue_43869/fn.m.html
-// @has issue_43869/fn.n.html
-// @has issue_43869/fn.o.html
-// @has issue_43869/fn.test_44731_0.html
-// @has issue_43869/fn.test_44731_1.html
-// @has issue_43869/fn.test_44731_4.html
+// @has foo/fn.g.html
+// @has foo/fn.h.html
+// @has foo/fn.i.html
+// @has foo/fn.j.html
+// @has foo/fn.k.html
+// @has foo/fn.l.html
+// @has foo/fn.m.html
+// @has foo/fn.n.html
+// @has foo/fn.o.html
+// @has foo/fn.test_44731_0.html
+// @has foo/fn.test_44731_1.html
+// @has foo/fn.test_44731_4.html
diff --git a/tests/rustdoc/auxiliary/issue-46727.rs b/tests/rustdoc/inline_cross/auxiliary/issue-46727.rs
index 30dccfa77b5..30dccfa77b5 100644
--- a/tests/rustdoc/auxiliary/issue-46727.rs
+++ b/tests/rustdoc/inline_cross/auxiliary/issue-46727.rs
diff --git a/tests/rustdoc/issue-46727.rs b/tests/rustdoc/inline_cross/const-eval-46727.rs
index 8cfc4827a7f..d0ce9c34f51 100644
--- a/tests/rustdoc/issue-46727.rs
+++ b/tests/rustdoc/inline_cross/const-eval-46727.rs
@@ -1,7 +1,10 @@
+// https://github.com/rust-lang/rust/issues/46727
+#![crate_name="foo"]
+
 // aux-build:issue-46727.rs
 
 extern crate issue_46727;
 
-// @has issue_46727/trait.Foo.html
+// @has foo/trait.Foo.html
 // @has - '//h3[@class="code-header"]' 'impl<T> Foo for Bar<[T; 3]>'
 pub use issue_46727::{Foo, Bar};
diff --git a/tests/rustdoc/issue-55364.rs b/tests/rustdoc/intra-doc/module-scope-name-resolution-55364.rs
index 941cb3ce1ca..c07aba628c9 100644
--- a/tests/rustdoc/issue-55364.rs
+++ b/tests/rustdoc/intra-doc/module-scope-name-resolution-55364.rs
@@ -1,6 +1,9 @@
+// https://github.com/rust-lang/rust/issues/55364
+#![crate_name="foo"]
+
 // First a module with inner documentation
 
-// @has issue_55364/subone/index.html
+// @has foo/subone/index.html
 // These foo/bar links in the module's documentation should refer inside `subone`
 // @has - '//section[@id="main-content"]/details[@open=""]/div[@class="docblock"]//a[@href="fn.foo.html"]' 'foo'
 // @has - '//section[@id="main-content"]/details[@open=""]/div[@class="docblock"]//a[@href="fn.bar.html"]' 'bar'
@@ -8,12 +11,12 @@ pub mod subone {
     //! See either [foo] or [bar].
 
     // This should refer to subone's `bar`
-    // @has issue_55364/subone/fn.foo.html
+    // @has foo/subone/fn.foo.html
     // @has - '//section[@id="main-content"]/details/div[@class="docblock"]//a[@href="fn.bar.html"]' 'bar'
     /// See [bar]
     pub fn foo() {}
     // This should refer to subone's `foo`
-    // @has issue_55364/subone/fn.bar.html
+    // @has foo/subone/fn.bar.html
     // @has - '//section[@id="main-content"]/details/div[@class="docblock"]//a[@href="fn.foo.html"]' 'foo'
     /// See [foo]
     pub fn bar() {}
@@ -21,7 +24,7 @@ pub mod subone {
 
 // A module with outer documentation
 
-// @has issue_55364/subtwo/index.html
+// @has foo/subtwo/index.html
 // These foo/bar links in the module's documentation should not reference inside `subtwo`
 // @!has - '//section[@id="main-content"]/div[@class="docblock"]//a[@href="fn.foo.html"]' 'foo'
 // @!has - '//section[@id="main-content"]/div[@class="docblock"]//a[@href="fn.bar.html"]' 'bar'
@@ -36,13 +39,13 @@ pub mod subtwo {
 
     // Despite the module's docs referring to the top level foo/bar,
     // this should refer to subtwo's `bar`
-    // @has issue_55364/subtwo/fn.foo.html
+    // @has foo/subtwo/fn.foo.html
     // @has - '//section[@id="main-content"]/details/div[@class="docblock"]//a[@href="fn.bar.html"]' 'bar'
     /// See [bar]
     pub fn foo() {}
     // Despite the module's docs referring to the top level foo/bar,
     // this should refer to subtwo's `foo`
-    // @has issue_55364/subtwo/fn.bar.html
+    // @has foo/subtwo/fn.bar.html
     // @has - '//section[@id="main-content"]/details/div[@class="docblock"]//a[@href="fn.foo.html"]' 'foo'
     /// See [foo]
     pub fn bar() {}
@@ -57,7 +60,7 @@ pub fn bar() {}
 
 // This module refers to the outer foo/bar by means of `super::`
 
-// @has issue_55364/subthree/index.html
+// @has foo/subthree/index.html
 // This module should also refer to the top level foo/bar
 // @has - '//section[@id="main-content"]/details/div[@class="docblock"]//a[@href="../fn.foo.html"]' 'foo'
 // @has - '//section[@id="main-content"]/details/div[@class="docblock"]//a[@href="../fn.bar.html"]' 'bar'
@@ -67,7 +70,7 @@ pub mod subthree {
 
 // Next we go *deeper* - In order to ensure it's not just "this or parent"
 // we test `crate::` and a `super::super::...` chain
-// @has issue_55364/subfour/subfive/subsix/subseven/subeight/index.html
+// @has foo/subfour/subfive/subsix/subseven/subeight/index.html
 // @has - '//section[@id="main-content"]/ul[@class="item-table"]//div[@class="desc docblock-short"]//a[@href="../../../../../subone/fn.foo.html"]' 'other foo'
 // @has - '//section[@id="main-content"]/ul[@class="item-table"]//div[@class="desc docblock-short"]//a[@href="../../../../../subtwo/fn.bar.html"]' 'other bar'
 pub mod subfour {
diff --git a/tests/rustdoc/issue-35488.rs b/tests/rustdoc/issue-35488.rs
deleted file mode 100644
index c1bf9ceeac1..00000000000
--- a/tests/rustdoc/issue-35488.rs
+++ /dev/null
@@ -1,13 +0,0 @@
-mod foo {
-    pub enum Foo {
-        Bar,
-    }
-    pub use self::Foo::*;
-}
-
-// @has 'issue_35488/index.html' '//code' 'pub use self::Foo::*;'
-// @has 'issue_35488/enum.Foo.html'
-pub use self::foo::*;
-
-// @has 'issue_35488/index.html' '//code' 'pub use std::option::Option::None;'
-pub use std::option::Option::None;
diff --git a/tests/rustdoc/issue-46377.rs b/tests/rustdoc/issue-46377.rs
deleted file mode 100644
index 1311b4721e2..00000000000
--- a/tests/rustdoc/issue-46377.rs
+++ /dev/null
@@ -1,3 +0,0 @@
-// @has 'issue_46377/index.html' '//*[@class="desc docblock-short"]' 'Check out this struct!'
-/// # Check out this struct!
-pub struct SomeStruct;
diff --git a/tests/rustdoc/issue-47197-blank-line-in-doc-block.rs b/tests/rustdoc/issue-47197-blank-line-in-doc-block.rs
deleted file mode 100644
index 19994475de2..00000000000
--- a/tests/rustdoc/issue-47197-blank-line-in-doc-block.rs
+++ /dev/null
@@ -1,8 +0,0 @@
-// @has issue_47197_blank_line_in_doc_block/fn.whose_woods_these_are_i_think_i_know.html
-
-/**
-* snow
-
-* ice
-*/
-pub fn whose_woods_these_are_i_think_i_know() {}
diff --git a/tests/rustdoc/issue-46380-2.rs b/tests/rustdoc/public-impl-mention-private-generic-46380-2.rs
index 7004d18dc66..96ebd888eb5 100644
--- a/tests/rustdoc/issue-46380-2.rs
+++ b/tests/rustdoc/public-impl-mention-private-generic-46380-2.rs
@@ -1,6 +1,9 @@
+// https://github.com/rust-lang/rust/issues/46380
+#![crate_name="foo"]
+
 pub trait PublicTrait<T> {}
 
-// @has issue_46380_2/struct.PublicStruct.html
+// @has foo/struct.PublicStruct.html
 pub struct PublicStruct;
 
 // @!has - '//*[@class="impl"]' 'impl PublicTrait<PrivateStruct> for PublicStruct'
diff --git a/tests/rustdoc/issue-53812.rs b/tests/rustdoc/sort-53812.rs
index dc1eb304c3d..968ae035043 100644
--- a/tests/rustdoc/issue-53812.rs
+++ b/tests/rustdoc/sort-53812.rs
@@ -1,3 +1,6 @@
+// https://github.com/rust-lang/rust/issues/53812
+#![crate_name="foo"]
+
 pub trait MyIterator {}
 
 pub struct MyStruct<T>(T);
@@ -11,7 +14,7 @@ macro_rules! array_impls {
     }
 }
 
-// @has issue_53812/trait.MyIterator.html
+// @has foo/trait.MyIterator.html
 // @has - '//*[@id="implementors-list"]/*[@class="impl"][1]' 'MyStruct<[T; 0]>'
 // @has - '//*[@id="implementors-list"]/*[@class="impl"][2]' 'MyStruct<[T; 1]>'
 // @has - '//*[@id="implementors-list"]/*[@class="impl"][3]' 'MyStruct<[T; 2]>'
diff --git a/tests/rustdoc/summary-header-46377.rs b/tests/rustdoc/summary-header-46377.rs
new file mode 100644
index 00000000000..aec74f493d4
--- /dev/null
+++ b/tests/rustdoc/summary-header-46377.rs
@@ -0,0 +1,6 @@
+// https://github.com/rust-lang/rust/issues/46377
+#![crate_name="foo"]
+
+// @has 'foo/index.html' '//*[@class="desc docblock-short"]' 'Check out this struct!'
+/// # Check out this struct!
+pub struct SomeStruct;